Baselayers for
Every Movement.

Baselayers for
Every Movement.

When temperatures drop, your first layer matters most. Our baselayers are engineered for performance, comfort, and durability — whether you’re chasing winter miles, exploring the backcountry, or simply training hard. With new innovations, proven classics, and a lifetime guarantee, this is the season to upgrade your foundation. 

New Baselayers

Comfort Meets Performance - Meet Active Comfort 2.0 — the next evolution of our best-selling baselayer. Re-engineered with sustainable structured fabrics, a regular-to-relaxed fit, and versatile style, it delivers the same comfort customers love with even better performance. Designed to be worn on its own or layered, it’s built for running, hiking, training, and everyday adventure.

Active Baselayers

  • Women's Active Comfort LS 2 - DK PLUM Craft Sportswear NA
    Women's Active Comfort LS 2 - DK PLUM Craft Sportswear NA
    Women's Active Comfort LS 2 - DK PLUM Craft Sportswear NA
    Women's Active Comfort LS 2 - DK PLUM Craft Sportswear NA
    Women's Active Comfort LS 2 - Black Craft Sportswear NA
    Women's Active Comfort LS 2 - Black Craft Sportswear NA
    Women's Active Comfort LS 2 - Black Craft Sportswear NA
    Women's Active Comfort LS 2 - Black Craft Sportswear NA
    Women's Active Comfort LS 2 - ROSE BROWN Craft Sportswear NA
    Women's Active Comfort LS 2 - ROSE BROWN Craft Sportswear NA
    Women's Active Comfort LS 2 - ROSE BROWN Craft Sportswear NA
    Women's Active Comfort LS 2 - ROSE BROWN Craft Sportswear NA
    Women's Active Comfort LS 2 - NORTH Craft Sportswear NA
    Women's Active Comfort LS 2 - NORTH Craft Sportswear NA
    Women's Active Comfort LS 2 - NORTH Craft Sportswear NA
    Women's Active Comfort LS 2 - NORTH Craft Sportswear NA
    Women's Active Comfort LS 2 - AERINITE Craft Sportswear NA
    Women's Active Comfort LS 2 - AERINITE Craft Sportswear NA
    Women's Active Comfort LS 2 - AERINITE Craft Sportswear NA
    Women's Active Comfort LS 2 - AERINITE Craft Sportswear NA
    Women's Active Comfort LS 2 - PLASTER Craft Sportswear NA
    Women's Active Comfort LS 2 - PLASTER Craft Sportswear NA
    Women's Active Comfort LS 2 - PLASTER Craft Sportswear NA
    Women's Active Comfort LS 2 - PLASTER Craft Sportswear NA
    Active Comfort Long

    Active Comfort Long

    $60.00
  • Men's Active Comfort LS 2 - CLOUD Craft Sportswear NA
    Men's Active Comfort LS 2 - CLOUD Craft Sportswear NA
    Men's Active Comfort LS 2 - CLOUD Craft Sportswear NA
    Men's Active Comfort LS 2 - CLOUD Craft Sportswear NA
    Men's Active Comfort LS 2 - BLAZE Craft Sportswear NA
    Men's Active Comfort LS 2 - BLAZE Craft Sportswear NA
    Men's Active Comfort LS 2 - BLAZE Craft Sportswear NA
    Men's Active Comfort LS 2 - BLAZE Craft Sportswear NA
    Men's Active Comfort LS 2 - INK BLUE Craft Sportswear NA
    Men's Active Comfort LS 2 - INK BLUE Craft Sportswear NA
    Men's Active Comfort LS 2 - INK BLUE Craft Sportswear NA
    Men's Active Comfort LS 2 - INK BLUE Craft Sportswear NA
    Men's Active Comfort LS 2 - CHIMERA Craft Sportswear NA
    Men's Active Comfort LS 2 - CHIMERA Craft Sportswear NA
    Men's Active Comfort LS 2 - CHIMERA Craft Sportswear NA
    Men's Active Comfort LS 2 - CHIMERA Craft Sportswear NA
    Men's Active Comfort LS 2 - Black Craft Sportswear NA
    Men's Active Comfort LS 2 - Black Craft Sportswear NA
    Men's Active Comfort LS 2 - Black Craft Sportswear NA
    Men's Active Comfort LS 2 - Black Craft Sportswear NA
    Men's Active Comfort Long

    Men's Active Comfort Long

    $60.00
  • Men's Active Comfort LS HZ 2 - BLAZE Craft Sportswear NA
    Men's Active Comfort LS HZ 2 - BLAZE Craft Sportswear NA
    Men's Active Comfort LS HZ 2 - BLAZE Craft Sportswear NA
    Men's Active Comfort LS HZ 2 - BLAZE Craft Sportswear NA
    Men's Active Comfort LS HZ 2 - Black Craft Sportswear NA
    Men's Active Comfort LS HZ 2 - Black Craft Sportswear NA
    Men's Active Comfort LS HZ 2 - Black Craft Sportswear NA
    Men's Active Comfort LS HZ 2 - Black Craft Sportswear NA
    Men's Active Comfort LS HZ 2

    Men's Active Comfort LS HZ 2

    $65.00
  • Women's Active Comfort LS HZ 2 - Black Craft Sportswear NA
    Women's Active Comfort LS HZ 2 - Black Craft Sportswear NA
    Women's Active Comfort LS HZ 2 - Black Craft Sportswear NA
    Women's Active Comfort LS HZ 2 - Black Craft Sportswear NA
    Women's Active Comfort LS HZ 2

    Women's Active Comfort LS HZ 2

    $65.00
  • Men's Active Comfort Pants 2 - Black Craft Sportswear NA
    Men's Active Comfort Pants 2 - Black Craft Sportswear NA
    Men's Active Comfort Pants 2 - Black Craft Sportswear NA
    Men's Active Comfort Pants 2 - Black Craft Sportswear NA
    Men's Active Comfort Pants 2

    Men's Active Comfort Pants 2

    $60.00
  • Women's Active Comfort Pants 2 - Black Craft Sportswear NA
    Women's Active Comfort Pants 2 - Black Craft Sportswear NA
    Women's Active Comfort Pants 2 - Black Craft Sportswear NA
    Women's Active Comfort Pants 2 - Black Craft Sportswear NA
    Women's Active Comfort Pants 2

    Women's Active Comfort Pants 2

    $60.00

    • BASELAYER GUIDE

    Find Your Perfect Fit

    Not sure where to start? Our updated Baselayer Guide makes it easy to compare styles, fits, and fabrics. Whether you need lightweight layers for high-intensity training or insulating warmth for sub-zero days, we’ll help you choose the right piece for your goals.

    Baselayer Guide

    Performance Baselayers

    Technical by Design - From the Nordic cold to alpine climbs, our Performance Baselayers have been trusted by endurance athletes for decades. With moisture-wicking fabrics, body-hugging fits, and sport-specific construction, they’re engineered for maximum output in the harshest conditions.

    Performance Baselayers

  • MEN'S ACTIVE EXTREME X BASELAYER Craft Sportswear NA
    MEN'S ACTIVE EXTREME X BASELAYER Craft Sportswear NA
    MEN'S ACTIVE EXTREME X BASELAYER Craft Sportswear NA
    MEN'S ACTIVE EXTREME X BASELAYER Craft Sportswear NA
    MEN'S ACTIVE EXTREME X BASELAYER Craft Sportswear NA
    MEN'S ACTIVE EXTREME X BASELAYER Craft Sportswear NA
    MEN'S ACTIVE EXTREME X BASELAYER Craft Sportswear NA
    MEN'S ACTIVE EXTREME X BASELAYER Craft Sportswear NA
    MEN'S ACTIVE EXTREME X BASELAYER

    MEN'S ACTIVE EXTREME X BASELAYER

    $90.00
  • Men's Active Extreme X Wind Boxer - Black/Granite Craft Sportswear NA
    Men's Active Extreme X Wind Boxer - Black/Granite Craft Sportswear NA
    Men's Active Extreme X Wind Boxer - Black/Granite Craft Sportswear NA
    Men's Active Extreme X Wind Boxer - Black/Granite Craft Sportswear NA
    Men's Active Extreme X Wind Boxer

    Men's Active Extreme X Wind Boxer

    $69.99
  • WOMEN'S ACTIVE EXTREME X BASELAYER Craft Sportswear NA
    WOMEN'S ACTIVE EXTREME X BASELAYER Craft Sportswear NA
    WOMEN'S ACTIVE EXTREME X BASELAYER Craft Sportswear NA
    WOMEN'S ACTIVE EXTREME X BASELAYER Craft Sportswear NA
    WOMEN'S ACTIVE EXTREME X BASELAYER

    WOMEN'S ACTIVE EXTREME X BASELAYER

    $90.00
  • WOMEN'S ACTIVE INTENSITY BASELAYER - CASSIUS-ROXO Craft Sportswear NA
    WOMEN'S ACTIVE INTENSITY BASELAYER - CASSIUS-ROXO Craft Sportswear NA
    WOMEN'S ACTIVE INTENSITY BASELAYER - CASSIUS-ROXO Craft Sportswear NA
    WOMEN'S ACTIVE INTENSITY BASELAYER - CASSIUS-ROXO Craft Sportswear NA
    WOMEN'S ACTIVE INTENSITY BASELAYER - TIDE-ROXO Craft Sportswear NA
    WOMEN'S ACTIVE INTENSITY BASELAYER - TIDE-ROXO Craft Sportswear NA
    WOMEN'S ACTIVE INTENSITY BASELAYER - TIDE-ROXO Craft Sportswear NA
    WOMEN'S ACTIVE INTENSITY BASELAYER - TIDE-ROXO Craft Sportswear NA
    WOMEN'S ACTIVE INTENSITY BASELAYER - BLACK/ASPHALT Craft Sportswear NA
    WOMEN'S ACTIVE INTENSITY BASELAYER - BLACK/ASPHALT Craft Sportswear NA
    WOMEN'S ACTIVE INTENSITY BASELAYER - BLACK/ASPHALT Craft Sportswear NA
    WOMEN'S ACTIVE INTENSITY BASELAYER - BLACK/ASPHALT Craft Sportswear NA
    WOMEN'S ACTIVE INTENSITY BASELAYER

    WOMEN'S ACTIVE INTENSITY BASELAYER

    $64.99 - $69.99
  • MEN'S ACTIVE INTENSITY BASELAYER PANTS - BLACK/ASPHALT Craft Sportswear NA
    MEN'S ACTIVE INTENSITY BASELAYER PANTS - BLACK/ASPHALT Craft Sportswear NA
    MEN'S ACTIVE INTENSITY BASELAYER PANTS - BLACK/ASPHALT Craft Sportswear NA
    MEN'S ACTIVE INTENSITY BASELAYER PANTS - BLACK/ASPHALT Craft Sportswear NA
    MEN'S ACTIVE INTENSITY BASELAYER PANTS

    MEN'S ACTIVE INTENSITY BASELAYER PANTS

    $59.99
  • MEN'S ACTIVE EXTREME X 1/4 ZIP BASELAYER Craft Sportswear NA
    MEN'S ACTIVE EXTREME X 1/4 ZIP BASELAYER Craft Sportswear NA
    MEN'S ACTIVE EXTREME X 1/4 ZIP BASELAYER Craft Sportswear NA
    MEN'S ACTIVE EXTREME X 1/4 ZIP BASELAYER Craft Sportswear NA
    MEN'S ACTIVE EXTREME X 1/4 ZIP BASELAYER

    MEN'S ACTIVE EXTREME X 1/4 ZIP BASELAYER

    $90.00
  • MEN'S ACTIVE EXTREME X BASELAYER PANTS Craft Sportswear NA
    MEN'S ACTIVE EXTREME X BASELAYER PANTS Craft Sportswear NA
    MEN'S ACTIVE EXTREME X BASELAYER PANTS Craft Sportswear NA
    MEN'S ACTIVE EXTREME X BASELAYER PANTS Craft Sportswear NA
    MEN'S ACTIVE EXTREME X BASELAYER PANTS

    MEN'S ACTIVE EXTREME X BASELAYER PANTS

    $70.00
  • MEN'S ACTIVE INTENSITY 1/4 ZIP BASELAYER Craft Sportswear NA
    MEN'S ACTIVE INTENSITY 1/4 ZIP BASELAYER Craft Sportswear NA
    MEN'S ACTIVE INTENSITY 1/4 ZIP BASELAYER Craft Sportswear NA
    MEN'S ACTIVE INTENSITY 1/4 ZIP BASELAYER Craft Sportswear NA
    MEN'S ACTIVE INTENSITY 1/4 ZIP BASELAYER

    MEN'S ACTIVE INTENSITY 1/4 ZIP BASELAYER

    $79.99
  • MEN'S ACTIVE EXTREME X WIND BASELAYER PANTS - Black/Granite Craft Sportswear NA
    MEN'S ACTIVE EXTREME X WIND BASELAYER PANTS - Black/Granite Craft Sportswear NA
    MEN'S ACTIVE EXTREME X WIND BASELAYER PANTS - Black/Granite Craft Sportswear NA
    MEN'S ACTIVE EXTREME X WIND BASELAYER PANTS - Black/Granite Craft Sportswear NA
    MEN'S ACTIVE EXTREME X WIND BASELAYER PANTS

    MEN'S ACTIVE EXTREME X WIND BASELAYER PANTS

    $119.99
  • WOMEN'S ACTIVE INTENSITY BASELAYER PANTS - BLACK/ASPHALT Craft Sportswear NA
    WOMEN'S ACTIVE INTENSITY BASELAYER PANTS - BLACK/ASPHALT Craft Sportswear NA
    WOMEN'S ACTIVE INTENSITY BASELAYER PANTS - BLACK/ASPHALT Craft Sportswear NA
    WOMEN'S ACTIVE INTENSITY BASELAYER PANTS - BLACK/ASPHALT Craft Sportswear NA
    WOMEN'S ACTIVE INTENSITY BASELAYER PANTS

    WOMEN'S ACTIVE INTENSITY BASELAYER PANTS

    $59.99
  • WOMEN'S ACTIVE EXTREME X PANTS Craft Sportswear NA
    WOMEN'S ACTIVE EXTREME X PANTS Craft Sportswear NA
    WOMEN'S ACTIVE EXTREME X PANTS Craft Sportswear NA
    WOMEN'S ACTIVE EXTREME X PANTS Craft Sportswear NA
    WOMEN'S ACTIVE EXTREME X PANTS

    WOMEN'S ACTIVE EXTREME X PANTS

    $70.00

    • BASELAYER LIFETIME GUARANTEE

    Your Baselayer for Life

    Every baselayer we’ve made in the last three years — including every new style this season — is backed by our Lifetime Guarantee. Because the gear you rely on most should last a lifetime, not just a season.

    EXPLORE